EX-21.1 3 a4q25exhibit211.htm EX-21.1
Exhibit 21.1
ATKORE INC.
Significant Subsidiaries
As of September 30, 2025

Entity Name |  | Jurisdiction of Incorporation
AFC Cable Systems, Inc. |  | Delaware
Allied Luxembourg S.a.r.l. |  | Luxembourg
Allied Products UK Limited |  | United Kingdom
Allied Tube & Conduit Corporation |  | Delaware
Atkore Construction Technologies NZ Limited |  | New Zealand
Atkore Foreign Holdings, Inc. |  | Delaware
Atkore HDPE, LLC |  | Delaware
Atkore Holdings IX (Denmark) ApS |  | Denmark
Atkore International, Inc. |  | Delaware
Atkore Management, LLC |  | Delaware
Atkore Metal Products (Changshu Co., Ltd.) |  | China
Atkore Metal Products Pte Limited |  | Singapore
Atkore Plastic Pipe Corporation |  | Delaware
Atkore Plastics Southeast, LLC |  | Delaware
Atkore Southwest, LLC |  | Delaware
Calpipe Industries, LLC |  | California
Columbia-MBF Inc. |  | Canada
FlexHead Industries, Inc. |  | Massachusetts
Flexicon Australia Pty Limited |  | Australia
Flexicon Limited |  | United Kingdom
FRE Composites, Inc. |  | Canada
Kalanda Enterprises Pty Limited |  | Australia
Marco Cable Management Limited |  | United Kingdom
Sasco Tubes & Roll Forming Inc. |  | Canada
Standard Industries Co. Limited |  | Hong Kong
Swan Metal Skirting Pty Limited |  | Australia
Tekflex Limited |  | United Kingdom - Dormant
TKN, Inc. |  | Rhode Island
Unistrut (New Zealand) Holdings Pty Limited |  | Australia
Unistrut Australia Pty Limited |  | Australia
Unistrut Cable Management and Protection Systems |  | Israel
Unistrut International Corporation |  | Nevada
Unistrut Limited |  | United Kingdom
United Poly Systems Holdings, Inc. |  | Delaware
United Poly Systems, LLC |  | Missouri
Vergo Coating BVBA |  | Belgium
Vergo Galva NV |  | Belgium
Vergokan International NV |  | Belgium
Vergokan NV |  | Belgium
Vergokan OOO |  | Russia
Vergokan SAS |  | France
Western Poly Pipe & Conduit, LLC |  | Oregon